Dolmen / Quoit / Cromlech

Skirrid Fawr viewed along the capstone. It seems likely that before the capstone slumped to one side the alignment may have been even more precise.
Is this further evidence for Alfred Watkins' belief in an old straight track between the two? Or alternatively, is the existence of the old straight track extra evidence that this alignment really was deliberate?
More musings here - http://www.themodernantiquarian.com/user/3188/weblog/0/56837